physical and chemical changes

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Tags

NGSS.MS-PS1-4

Front

Give an example of a chemical change.

Back

Baking cookies is an example of a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What happens to the matter in a physical change?

Back

In a physical change, the matter remains the same before and after the change.

Front

What happens to the matter in a chemical change?

Back

In a chemical change, the matter changes into different substances with different properties.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Is melting chocolate a physical or chemical change?

Back

Melting chocolate is a physical change.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Is baking a cake a physical or chemical change?

Back

Baking a cake is a chemical change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is an indicator of a chemical change?

Back

Indicators of a chemical change include color change, gas production, temperature change, and the formation of a precipitate.

Tags

NGSS.MS-PS1-2

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not alter the chemical composition of a substance, while a chemical change results in new substances being formed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5